#include<bits/stdc++.h>
using namespace std;
const int N=100005;
int n,a[N],d[N],ans=0;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++){cin>>a[i];d[a[i]]++;ans=max(ans,d[a[i]]);}
    cout<<ans<<endl;
    return 0;
}